vfp_pm_suspend should save the VFP state in suspend after
any lazy context switch. If it only saves when the VFP is enabled,
the state can get lost when, on a UP system:
Thread 1 uses the VFP
Context switch occurs to thread 2, VFP is disabled but the
VFP context is not saved
Thread 2 initiates suspend
vfp_pm_suspend is called with the VFP disabled, and the unsaved
VFP context of Thread 1 in the registers
Modify vfp_pm_suspend to save the VFP context whenever
vfp_current_hw_state is not NULL.
Includes a fix from Ido Yariv <ido@wizery.com>, who pointed out that on
SMP systems, the state pointer can be pointing to a freed task struct if
a task exited on another cpu, fixed by using #ifndef CONFIG_SMP in the
new if clause.
Cc: Barry Song <bs14@csr.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ido Yariv <ido@wizery.com>
Cc: Daniel Drake <dsd@laptop.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
vfp_pm_suspend runs on each cpu, only clear the hardware state
pointer for the current cpu. Prevents a possible crash if one
cpu clears the hw state pointer when another cpu has already
checked if it is valid.
Cc: stable@vger.kernel.org
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit 722b3c7469 modified x86 ftrace to
avoid tracing all functions called from irqs when function graph was
used with a filter. Port the same fix to ARM.
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The open-coded mutex implementation for ARMv6+ cores suffers from a
severe lack of barriers, so in the uncontended case we don't actually
protect any accesses performed during the critical section.
Furthermore, the code is largely a duplication of the ARMv6+ atomic_dec
code but optimised to remove a branch instruction, as the mutex fastpath
was previously inlined. Now that this is executed out-of-line, we can
reuse the atomic access code for the locking (in fact, we use the xchg
code as this produces shorter critical sections).
This patch uses the generic xchg based implementation for mutexes on
ARMv6+, which introduces barriers to the lock/unlock operations and also
has the benefit of removing a fair amount of inline assembly code.
Cc: <stable@vger.kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Reported-by: Shan Kang <kangshan0910@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The CPU will endlessly spin at the end of machine_halt and
machine_restart calls. However, this will lead to a soft lockup
warning after about 20 seconds, if CONFIG_LOCKUP_DETECTOR is enabled,
as system timer is still alive.
Disable interrupt before going to spin endlessly, so that the lockup
warning will never be seen.
Cc: <stable@vger.kernel.org>
Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The memory regions which are passed to arm_add_memory() from
device tree blobs via early_init_dt_add_memory_arch() can
have sizes which are larger than will fit in a 32 bit integer,
so switch to using a phys_addr_t to hold them, to avoid
silently dropping the top 32 bits of the size. Similarly, use
phys_addr_t in early_mem() so that mem=size@start command line
options specifying more than 4GB behave sensibly.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
While running hotplug tests I ran into this RCU splat
===============================
[ INFO: suspicious RCU usage. ]
3.4.0 #3275 Tainted: G W
-------------------------------
include/linux/rcupdate.h:729 rcu_read_lock() used illegally while idle!
other info that might help us debug this:
RCU used illegally from idle CPU!
rcu_scheduler_active = 1, debug_locks = 0
RCU used illegally from extended quiescent state!
4 locks held by swapper/2/0:
#0: ((cpu_died).wait.lock){......}, at: [<c00ab128>] complete+0x1c/0x5c
#1: (&p->pi_lock){-.-.-.}, at: [<c00b275c>] try_to_wake_up+0x2c/0x388
#2: (&rq->lock){-.-.-.}, at: [<c00b2860>] try_to_wake_up+0x130/0x388
#3: (rcu_read_lock){.+.+..}, at: [<c00abe5c>] cpuacct_charge+0x28/0x1f4
stack backtrace:
[<c001521c>] (unwind_backtrace+0x0/0x12c) from [<c00abec8>] (cpuacct_charge+0x94/0x1f4)
[<c00abec8>] (cpuacct_charge+0x94/0x1f4) from [<c00b395c>] (update_curr+0x24c/0x2c8)
[<c00b395c>] (update_curr+0x24c/0x2c8) from [<c00b59c4>] (enqueue_task_fair+0x50/0x194)
[<c00b59c4>] (enqueue_task_fair+0x50/0x194) from [<c00afea4>] (enqueue_task+0x30/0x34)
[<c00afea4>] (enqueue_task+0x30/0x34) from [<c00b0908>] (ttwu_activate+0x14/0x38)
[<c00b0908>] (ttwu_activate+0x14/0x38) from [<c00b28a8>] (try_to_wake_up+0x178/0x388)
[<c00b28a8>] (try_to_wake_up+0x178/0x388) from [<c00a82a0>] (__wake_up_common+0x34/0x78)
[<c00a82a0>] (__wake_up_common+0x34/0x78) from [<c00ab154>] (complete+0x48/0x5c)
[<c00ab154>] (complete+0x48/0x5c) from [<c07db7cc>] (cpu_die+0x2c/0x58)
[<c07db7cc>] (cpu_die+0x2c/0x58) from [<c000f954>] (cpu_idle+0x64/0xfc)
[<c000f954>] (cpu_idle+0x64/0xfc) from [<80208160>] (0x80208160)
When a cpu is marked offline during its idle thread it calls
cpu_die() during an RCU idle period. cpu_die() calls complete()
to notify the killing process that the cpu has died. complete()
calls into the scheduler code and eventually grabs an RCU read
lock in cpuacct_charge().
Mark complete() as RCU_NONIDLE so that RCU pays attention to this
CPU for the duration of the complete() function even though it's
in idle.
Suggested-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Pull ARM fixes from Russell King:
"Last merge window, we had some updates from Al cleaning up the signal
restart handling. These have caused some problems on ARM, and while
Al has some fixes, we have some concerns with Al's patches but we've
been unsuccesful with discussing this.
We have got to the point where we need to do something, and we've
decided that the best solution is to revert the appropriate commits
until Al is able to reply to us.
Also included here are four patches to fix warnings that I've noticed
in my build system, and one fix for kprobes test code."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: fix warning caused by wrongly typed arm_dma_limit
ARM: fix warnings about atomic64_read
ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
ARM: 7442/1: Revert "remove unused restart trampoline"
ARM: fix set_domain() macro
ARM: fix mach-versatile/pci.c warning
Small fixes on multiple ARM platforms
* A build regression from a previous fix on dove and mv78xx0
* Two fixes for recently (3.5-rc1) changed mmp/pxa code
* multiple omap2+ bug fixes
* two trivial fixes for i.MX
* one v3.5 regression for mxs
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=2Ynd
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Small fixes on multiple ARM platforms
- A build regression from a previous fix on dove and mv78xx0
- Two fixes for recently (3.5-rc1) changed mmp/pxa code
- multiple omap2+ bug fixes
- two trivial fixes for i.MX
- one v3.5 regression for mxs"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: apx4devkit: fix FEC enabling PHY clock
ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
ARM: Orion: Fix WDT compile for Dove and MV78xx0
ARM: mmp: remove mach/gpio-pxa.h
ARM: imx: assert SCC gate stays enabled
ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
ARM: imx27_visstrim_m10: Do not include <asm/system.h>
ARM: pxa: hx4700: Fix basic suspend/resume
arch/arm/mm/init.c: In function 'arm_memblock_init':
arch/arm/mm/init.c:380: warning: comparison of distinct pointer types lacks a cast
by fixing the typecast in its definition when DMA_ZONE is disabled.
This was missed in 4986e5c7c (ARM: mm: fix type of the arm_dma_limit
global variable).
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix:
net/netfilter/xt_connbytes.c: In function 'connbytes_mt':
net/netfilter/xt_connbytes.c:43: warning: passing argument 1 of 'atomic64_read' discards qualifiers from pointer target type
...
by adding the missing const.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
'sub pc, pc, #1b-2b+8-2' results in address<1:0> == '10'.
sub pc, pc, #const (== ADR pc, #const) performs an interworking branch
(BXWritePC()) on ARMv7+ and a simple branch (BranchWritePC()) on earlier
versions.
In ARM state, BXWritePC() is UNPREDICTABLE when address<1:0> == '10'.
In ARM state on ARMv6+, BranchWritePC() ignores address<1:0>. Before
ARMv6, BranchWritePC() is UNPREDICTABLE if address<1:0> != '00'
So the instruction is UNPREDICTABLE both before and after v6.
Acked-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
working again.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=9LmJ
-----END PGP SIGNATURE-----
Merge tag 'omap-fixes-for-v3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
PM related fixes for omaps mostly to get suspend/resume
working again.
* tag 'omap-fixes-for-v3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
We currently return -EPERM if the user requests mode exclusion that is
not supported by the CPU. This looks pretty confusing from userspace
and is inconsistent with other architectures (ppc, x86).
This patch returns -EOPNOTSUPP instead.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This reverts commit 6b5c8045ec.
Conflicts:
arch/arm/kernel/ptrace.c
The new syscall restarting code can lead to problems if we take an
interrupt in userspace just before restarting the svc instruction. If
a signal is delivered when returning from the interrupt, the
TIF_SYSCALL_RESTARTSYS will remain set and cause any syscalls executed
from the signal handler to be treated as a restart of the previously
interrupted system call. This includes the final sigreturn call, meaning
that we may fail to exit from the signal context. Furthermore, if a
system call made from the signal handler requires a restart via the
restart_block, it is possible to clear the thread flag and fail to
restart the originally interrupted system call.
The right solution to this problem is to perform the restarting in the
kernel, avoiding the possibility of handling a further signal before the
restart is complete. Since we're almost at -rc6, let's revert the new
method for now and aim for in-kernel restarting at a later date.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This reverts commit fa18484d09.
We need the restart trampoline back so that we can revert a related
problematic patch 6b5c8045ec ("arm: new
way of handling ERESTART_RESTARTBLOCK").
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Avoid polluting drivers with a set_domain() macro, which interferes with
structure member names:
drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c:294:33: error: macro "set_domain" passed 2 arguments, but takes just 1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
management and McBSP.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=GhIQ
-----END PGP SIGNATURE-----
Merge tag 'omap-fixes-b-for-3.5rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes
A few more OMAP fixes for 3.5-rc. These fix some bugs with power
management and McBSP.
Ethernet stopped to work after mxs clk framework change.
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
arch/arm/mach-versatile/pci.c: In function 'versatile_map_irq':
arch/arm/mach-versatile/pci.c:342: warning: unused variable 'devslot'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The commit 503d0ea24d
ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks
added a wrong "prcm_clk" alias for PRCM clock whereas the McBSP
driver and previous OMAPs are using "prcm_fck".
It thus lead to the following warning.
[ 47.409729] omap-mcbsp: clks: could not clk_get() prcm_fck
Fix that by changing the opt_clk role to prcm_fck.
Reported-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Sebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
The OMAP4 usb_host_fs (OHCI) and AESS IP blocks require some special
programming for them to enter idle. Without this programming, they
will prevent the rest of the chip from entering full chip idle.
To implement the idle programming cleanly, this will take some
coordination between maintainers. This is likely to take some time,
so it is probably best to leave this for 3.6 or 3.7. So, in the
meantime, prevent these IP blocks from being registered.
Later, once the appropriate support is available, this patch can be
reverted.
This second version comments out the IP block data since Benoît didn't
like removing it.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Commit 0fa1f0609a (ARM: Orion: Fix
Virtual/Physical mixup with watchdog) broke the Dove & MV78xx0
build. Although these two SoC don't use the watchdog, the shared
platform code still needs to build. Add the necessary defines.
Cc: stable@vger.kernel.org
Reported-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Commit 157d2644cb ("ARM: pxa: change gpio
to platform device") removed all includes of mach/gpio-pxa.h. It kept
this unused header in the tree. Using it can't work, as it itself
includes the non-existent header plat/gpio-pxa.h. This header can safely
be removed.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
The SCC clock is needed in internal boot mode and so must keep enabled.
This same issue was fixed for the pre-common-clk code in commit
3d6e614 (mx35: Fix boot ROM hang in internal boot mode)
Cc: John Ogness <jogness@linutronix.de>
Cc: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The SYS_NIRQ1 pin is the interupt line for the PMIC part of the TWL6030
and interrupts from the PMIC are needed as wakeup sources.
Ensure this pin is mux'd as input and has wakeup enabled so PMIC
interupts (e.g. RTC) can be used as wakeup sources.
Tested on OMAP4430/Panda.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
In order for suspend/resume dependencies to work correctly, I2C has to
be initialized (more specifically, registered with the driver core)
before MMC. Without this, the MMC driver fails to adjust the VMMC
regulator (using i2c writes) during the suspend path.
Problem found testing suspend/resume on 3730/OveroSTORM platform.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
commit 435ca24 (ARM i.MX: Visstrim_M10: Add board version detection)
included <asm/system.h>, which is a header file about to be deleted according to
9f97da (Disintegrate asm/system.h for ARM)
Include <asm/system_info.h> instead.
Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Pull two ARM fixes from Russell King:
"It's been fairly quiet with the fixes. Just two this time. One fixes
a long standing problem with KALLSYMS needing an additional pass, and
the other sorts a problem with the vmalloc space interacting with
static IO mappings."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7438/1: fill possible PMD empty section gaps
ARM: 7428/1: Prevent KALLSYM size mismatch on ARM.
On ARM with the 2-level page table format, a PMD entry is represented by
two consecutive section entries covering 2MB of virtual space.
However, static mappings always were allowed to use separate 1MB section
entries. This means in practice that a static mapping may create half
populated PMDs via create_mapping().
Since commit 0536bdf33f (ARM: move iotable mappings within the vmalloc
region) those static mappings are located in the vmalloc area. We must
ensure no such half populated PMDs are accessible once vmalloc() or
ioremap() start looking at the vmalloc area for nearby free virtual
address ranges, or various things leading to a kernel crash will happen.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: "R, Sricharan" <r.sricharan@ti.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Basic suspend/resume is fixed by ensuring that the PGSR registers are
set correctly before sleep mode is entered. In particular four of the
active low resets need to be driven high while in sleep mode, otherwise
the unit resets itself instead of suspending. Another problem was that
the PCFR_GPROD bit is set by the HTC bootloader; this caused GPIO reset
(i.e. the reset button) to fail immediately after returning from sleep
mode.
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Another week, another batch of fixes.
All are small, contained, targeted fixes for explicit problems -- mostly
build and boot failures across i.MX, OMAP, Renesas/Shmobile and Samsung.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQIcBAABAgAGBQJP74D0AAoJEIwa5zzehBx3MbwQAIyRtHYjodf1Jl4TTRTtd4A7
rOyOYxhSnick8gOMciGcfOigl0lqdZ77P//aFsXKSY+T84tHvDMS537qR3B7aNQF
QiUV3a/KMCSU/qyQmhEWEQjnEesvbI3uC55q5hOLCLXIgXGFbvCN2wdfwo6BvafD
LvfmI0J0wVr+i0QyMHGmAgPbwNkjzeCxtBS58bGqVqX63bGp2mqxIDwc1y+BfxZg
ZW/9aZBgnsS/4B9lARI2bInLGr0DTJPzIyExVJhIrcikPer1b17GZEcE+IneC5GK
oSEZzgpX+2LkSF0qs13bLIMfH/ID0piToMx2kY+DxALTEAK/9XGnqLHVI2ZjWDrK
xaGQa+OvZ+ed9xN3jUazgzaWautAI0wJ3XWOu9cqCWo5QjKF0EGD6WEgQCFtIVI3
r7pU4/NK/H3LUOnUcX+jMYgie29wmDhnb2sX2E1U5/utOKlG/uGFmeSJHfF4VM6o
rmUmFS+rvtgNlud0wBiuhoKIh8XPOPIWbmXKGajaRPmCrXfP/AYCBzXYoMWzg7sE
TxrhNUItgzjfc6h/oQZ7fIEmnrWjgcpuiJwPTDm+JYIXCNU9uW91finFwAzBJZmV
bmT9xEaaaBluF7PV6Vj1WHvKnlFfCzLOHLb2pQ+FfeUx0SC70a1TccW3b6Vp4Eer
TmSuQwPFSzO/XsGNH6+K
=C8+9
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another week, another batch of fixes.
All are small, contained, targeted fixes for explicit problems --
mostly build and boot failures across i.MX, OMAP, Renesas/Shmobile and
Samsung."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx6q: fix suspend regression caused by common clk migration
ARM: OMAP4470: Fix OMAP4470 boot failure
ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry
ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
ARM: shmobile: r8a7779: Route all interrupts to ARM
ARM: shmobile: kzm9d: use late init machine hook
ARM: shmobile: kzm9g: use late init machine hook
ARM: mach-shmobile: armadillo800eva: Use late init machine hook
ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping
ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel
ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled
ARM: shmobile: sh7372: bugfix: chclr_offset base
ARM: shmobile: sh73a0: bugfix: SY-DMAC number
ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL
When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi
get different on/off states than old clk driver, which breaks suspend
function. There might be a better way to manage these clocks, but let's
takes the old clk driver approach to fix the regression first.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
trivial fix to get omap4470 booting.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=EieC
-----END PGP SIGNATURE-----
Merge tag 'omap-fixes-for-v3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
"Here's one more regression fix that I missed earlier, and a
trivial fix to get omap4470 booting."
* tag 'omap-fixes-for-v3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP4470: Fix OMAP4470 boot failure
ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
OMAP4470 currently fails to boot, printing various messages such as ...
omap_hwmod: mpu: cannot clk_get main_clk dpll_mpu_m2_ck
omap_hwmod: mpu: cannot _init_clocks
------------[ cut here ]------------
WARNING: at arch/arm/mach-omap2/omap_hwmod.c:2062 _init+0x2a0/0x2e4()
omap_hwmod: mpu: couldn't init clocks
Modules linked in:
[<c001c7fc>] (unwind_backtrace+0x0/0xf4) from [<c0043c64>] (warn_slowpath_common+0x4c/0x64)
[<c0043c64>] (warn_slowpath_common+0x4c/0x64) from [<c0043d10>] (warn_slowpath_fmt+0x30/0x40)
[<c0043d10>] (warn_slowpath_fmt+0x30/0x40) from [<c0674208>] (_init+0x2a0/0x2e4)
[<c0674208>] (_init+0x2a0/0x2e4) from [<c067428c>] (omap_hwmod_setup_one+0x40/0x60)
[<c067428c>] (omap_hwmod_setup_one+0x40/0x60) from [<c0674280>] (omap_hwmod_setup_one+0x34/0x60)
[<c0674280>] (omap_hwmod_setup_one+0x34/0x60) from [<c06726f4>] (omap_dm_timer_init_one+0x30/0x250)
[<c06726f4>] (omap_dm_timer_init_one+0x30/0x250) from [<c0672930>] (omap2_gp_clockevent_init+0x1c/0x108)
[<c0672930>] (omap2_gp_clockevent_init+0x1c/0x108) from [<c0672c60>] (omap4_timer_init+0x10/0x5c)
[<c0672c60>] (omap4_timer_init+0x10/0x5c) from [<c066c418>] (time_init+0x20/0x30)
[<c066c418>] (time_init+0x20/0x30) from [<c0668814>] (start_kernel+0x1b0/0x304)
[<c0668814>] (start_kernel+0x1b0/0x304) from [<80008044>] (0x80008044)
---[ end trace 1b75b31a2719ed1c ]---
The problem is that currently none of the clocks are being registered for
OMAP4470 devices and so on boot-up no clocks can be found and the kernel panics.
This fix allows the kernel to boot without failure using a simple RAMDISK file
system on OMAP4470 blaze board.
Per feedback from Paul and Benoit the 4470 clock data is incomplete for new
modules such as the 2D graphics block that has been added to the 4470.
Therefore add a warning to indicate that the clock data is incomplete.
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit 20ef9e08 ("ARM: EXYNOS: Support DMA for EXYNOS5250 SoC")
renamed EXYNOS4_DEV_DMA to EXYNOS_DEV_DMA. But some machine entries
still had EXYNOS4_DEV_DMA. Changed them to EXYNOS_DEV_DMA.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
commit 8259573b (ARM: OMAP2+: nand: Make board_onenand_init() visible
to board code) broke the build for configs with OneNAND disabled. By
removing the static in the header file, it created a duplicate definition
in the .c and the .h files, resuling in a build error:
/work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.c:102:111: error: redefinition of 'board_onenand_init'
/work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.h:56:51: note: previous definition of 'board_onenand_init' was here
make[2]: *** [arch/arm/mach-omap2/board-flash.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [arch/arm/mach-omap2] Error 2
make: *** [sub-make] Error 2
Fix this by removing the duplicate dummy entry from the C file.
Cc: Enric Balletbò i Serra <eballetbo@gmail.com>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Pull media fixes from Mauro Carvalho Chehab.
Trivial conflict due to new USB HID ID's being added next to each other
(Baanto vs Axentia).
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (44 commits)
[media] smia: Fix compile failures
[media] Fix VIDIOC_DQEVENT docbook entry
[media] s5p-fimc: Fix control creation function
[media] s5p-mfc: Fix checkpatch error in s5p_mfc_shm.h file
[media] s5p-mfc: Fix setting controls
[media] v4l/s5p-mfc: added image size align in VIDIOC_TRY_FMT
[media] v4l/s5p-mfc: corrected encoder v4l control definitions
[media] v4l: mem2mem_testdev: Fix race conditions in driver
[media] s5p-mfc: Bug fix of timestamp/timecode copy mechanism
[media] cxd2820r: Fix an incorrect modulation type bitmask
[media] em28xx: Show a warning if the board does not support remote controls
[media] em28xx: Add remote control support for Terratec's Cinergy HTC Stick HD
[media] USB: Staging: media: lirc: initialize spinlocks before usage
[media] Revert "[media] media: mx2_camera: Fix mbus format handling"
[media] bw-qcam: driver and pixfmt documentation fixes
[media] cx88: fix firmware load on big-endian systems
[media] cx18: support big-endian systems
[media] ivtv: fix support for big-endian systems
[media] tuner-core: return the frequency range of the correct tuner
[media] v4l2-dev.c: fix g_parm regression in determine_valid_ioctls()
...
IOMMU-aware dma_alloc_attrs() implementation allocates buffers in
power-of-two chunks to improve performance and take advantage of large
page mappings provided by some IOMMU hardware. However current code, due
to a subtle bug, allocated those chunks in the smallest-to-largest
order, what completely killed all the advantages of using larger than
page chunks. If a 4KiB chunk has been mapped as a first chunk, the
consecutive chunks are not aligned correctly to the power-of-two which
match their size and IOMMU drivers were not able to use internal
mappings of size other than the 4KiB (largest common denominator of
alignment and chunk size).
This patch fixes this issue by changing to the correct largest-to-smallest
chunk size allocation sequence.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas:
ARM: shmobile: r8a7779: Route all interrupts to ARM
ARM: shmobile: kzm9d: use late init machine hook
ARM: shmobile: kzm9g: use late init machine hook
ARM: mach-shmobile: armadillo800eva: Use late init machine hook
ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel
ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled
ARM: shmobile: sh7372: bugfix: chclr_offset base
ARM: shmobile: sh73a0: bugfix: SY-DMAC number
Nothing very controversial in here. Most of the fixes are for OMAP this time
around, with some orion/kirkwood and a tegra patch mixed in.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=6Ahb
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Nothing very controversial in here. Most of the fixes are for OMAP
this time around, with some orion/kirkwood and a tegra patch mixed in."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: Orion: Fix Virtual/Physical mixup with watchdog
ARM: Kirkwood: clk_register_gate_fn: add fn assignment
ARM: Orion5x - Restore parts of io.h, with rework
ARM: OMAP4: hwmod data: Force HDMI in no-idle while enabled
ARM: OMAP2+: mux: fix sparse warning
ARM: OMAP2+: CM: increase the module disable timeout
ARM: OMAP4: clock data: add clockdomains for clocks used as main clocks
ARM: OMAP4: hwmod data: fix 32k sync timer idle modes
ARM: OMAP4+: hwmod: fix issue causing IPs not going back to Smart-Standby
ARM: OMAP: Fix Beagleboard DVI reset gpio
arm/dts: OMAP2: Fix interrupt controller binding
ARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0
ARM: OMAP2+: Fix MUSB ifdefs for platform init code
ARM: tegra: make tegra_cpu_reset_handler_enable() __init
ARM: OMAP: PM: Lock clocks list while generating summary
ARM: iconnect: Remove include of removed linux/spi/orion_spi.h
The orion watchdog is expecting to be passed the physcial address of
the hardware, and will ioremap() it to give a virtual address it will
use as the base address for the hardware. However, when creating the
platform resource record, a virtual address was being used.
Add the necassary #define's so we can pass the physical address as
expected.
Tested on Kirkwood and Orion5x.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Olof Johansson <olof@lixom.net>
In commit:
98d9986 ARM: Kirkwood: Replace clock gating
the kirkwood clock gating has been reworked. A custom variant of
clock gating, that calls a custom function before gating the clock
off, has been introduced. However in clk_register_gate_fn() this
custom function "fn" is never assigned.
This patch adds the missing fn assignment.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@blackshift.org>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Olof Johansson <olof@lixom.net>
Commit 4d5fc58dbe (ARM: remove bunch of
now unused mach/io.h files) removed the orion5x io.h. Unfortunately,
this is still needed for the definition of IO_SPACE_LIMIT which
overrides the default 64K. All Orion based systems have 1Mbyte of IO
space per PCI[e] bus, and try to request_resource() this size. Orion5x
has two such PCI buses.
It is likely that the original, removed version, was broken. This
version might be less broken. However, it has not been tested on
hardware with a PCI card, let alone hardware with a PCI card with IO
capabilities.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
reset. All of them are regression fixes, except for the missing omap2
interrupt controller binding that somehow got missed earlier.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=cMPJ
-----END PGP SIGNATURE-----
Merge tag 'omap-fixes-for-v3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
"Here are a few fixes with the biggest one being fix for Beagle DVI
reset. All of them are regression fixes, except for the missing omap2
interrupt controller binding that somehow got missed earlier."
* tag 'omap-fixes-for-v3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: Fix Beagleboard DVI reset gpio
arm/dts: OMAP2: Fix interrupt controller binding
ARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0
ARM: OMAP2+: Fix MUSB ifdefs for platform init code
